The fracture toughness of hot-pressed NbCr2alloys doped by rare earth yttrium

S. Q. Lu, H. Z. Zheng, Mingwang Fu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)

Abstract

NbCr2Laves phase alloys doped by rare earth yttrium were fabricated by mechanical alloying and hot pressing. The effect of yttrium addition content on the fracture toughness of these alloys was investigated. The experimental results show that a minor addition of yttrium can refine the microstructure and toughen NbCr2Laves phase. When the content of yttrium in NbCr2is about 0.1 wt.%, the fracture toughness value is increased by about 20%, which is 4 times higher than that of the cast alloy (1.2 MPa m1/2).
Original languageEnglish
Pages (from-to)205-207
Number of pages3
JournalScripta Materialia
Volume61
Issue number2
DOIs
Publication statusPublished - 1 Jul 2009

Keywords

  • Fracture toughness
  • Microstructure analysis
  • NbCr Laves phase alloy 2
  • Rare earth element yttrium

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this